Evaluation of litter material and ventilation systems in poultry production: I. overall performance

Abreu, V. M. N.; Abreu, P. G. de; Coldebella, Arlei; Jaenisch, F. R. F.; Silva, Virgínia Santiago

doi:10.1590/s1516-35982011000600027

Cited by 8 publications

(4 citation statements)

References 7 publications

(6 reference statements)

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“…In spite of the non-significant effects of different feeder shapes on quails' weight in the 4 th week, quail dealt with a round feeder showed the best body weight and feed intake compared to the other groups. These results agreed with two other researchers who stated that some management condition can affect the growth performance of quails (26, 27), such as body weight (28) and feed consumption (29). Our results indicated that the vertical-wide and round feeder shapes can positively affect the performance of quails and it can show the good managerial conditions applied in our experiment.…”

Section: Discussionsupporting

confidence: 93%

Effects of Feeder Shape on Behavioral Patterns, Performance and Egg Quality Traits of Japanese Quail

Mohammed¹,

Rehan²,

Abou-Elnaga³

et al. 2019

SVR

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Offering the food to Japanese quails may help to reorganize their behavioral needs. However, limited data was reported on the effect of feeder shape on birds' behaviors, welfare, and productivity. Herein, the main objective was to assess the effects of the most available feeder shapes in the Egyptian market on the birds' behaviors. The shape of feeders were longitudinal, vertical-narrow, vertical-wide and round. All the used feeders were made from plastic, marked with a grey color and enriched with a net. A total of 180 one-day old Japanese quail (Coturnix japonica) were divided into four experimental groups (three replicates of each). Behavioral patterns of birds were investigated by direct observation and video recording for four days per week using scan sampling technique. The results indicated that there were feeder shape-dependent-differences in quail behaviors demonstrating the highest significant (P<0.001) levels of activity behaviors in a round feeder compared to other groups. Moreover, the highest significant (P<0.001) levels of resting behaviors within a vertical-wide feeder group. Likewise, flying behavior was recorded in the above mentioned group. However, the fear associated responses and alertness were the highest significant level (P<0.001 each) in longitudinal and vertical-wide feeders. Noticeably, the aggressive pecking was the highest significant (P<0.001) levels in birds dealt with a longitudinal feeder. Meanwhile, almost of a quail's egg quality traits demonstrated the highest significant values (P<0.001) during offering round containers for the birds. The results therefore suggested that quails might have a preference to deal more with a round feeder shape than other shapes. These findings may also have great implications to researchers, veterinarians and stakeholders to decide the most economic feeder shape of quails for greater performance and productivity.

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Section: Discussionsupporting

confidence: 93%

Effects of Feeder Shape on Behavioral Patterns, Performance and Egg Quality Traits of Japanese Quail

Mohammed¹,

Rehan²,

Abou-Elnaga³

et al. 2019

SVR

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“…Ademais, a renovação do ar no interior de aviários é imprescindível para o balanço de umidade e para a eliminação de gases como a amônia e dióxido de carbono, poeira, microrganismos e odores, além de favorecer a redução da transferência de calor pela cobertura, contribuindo com as trocas de calor do animal por convecção e evaporação (YANAGI JÚNIOR, 2006;BAÊTA & SOUZA, 2010;ABREU et al, 2011;BIANCHI et al, 2015;ALBINO et al, 2017). Desse modo, a ventilação representa uma das mais importantes estratégias para a manutenção do conforto térmico e da qualidade do ar em aviários, pois auxilia na redução da produção de calor metabólico e, em condições de estresse, mantem o equilíbrio eletrolítico (NAWAB et al, 2018).…”

Section: Introductionunclassified

Sistemas De Ventilação Na Avicultura Brasileira: Estado Da Arte

Vilela

Gates

Souza

et al. 2020

Revista Brasileira De Engenharia De Biossistemas

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RESUMOO Brasil é um dos principais produtores mundiais de carne de frango e de ovos, e para se manter competitivo no mercado, novas metodologias vem sendo estudadas e implementadas a fim de se obter maior rendimento na produção, enfatizando-se o manejo, dieta, sanidade e ambiência. Neste sentido, o monitoramento e controle de variáveis relacionadas ao ambiente térmico e qualidade do ar são de extrema relevância. Ademais, o perfil do consumidor atual tem se mostrado cada vez mais exigente frente ao bem-estar animal diante da grande visibilidade desse conceito nos últimos anos, segundo o qual a procedência dos produtos consumidos são critérios de escolha no momento da compra. Na produção avícola industrial, um dos pontos cruciais para garantia de um ambiente confortável para as aves e, assim, boas respostas nos índices zootécnicos, consiste na escolha e dimensionamento correto do sistema de ventilação instalado nos galpões de criação. Diante disso, para alcançar melhor distribuição do fluxo de ar em aviários e atender as exigências internacionais de bem-estar e qualidade do ar, de acordo com os padrões de qualidade exigidos, esta revisão de literatura objetivou apresentar um levantamento dos principais sistemas de ventilação, bem como de sua aplicabilidade na avicultura brasileira, além de reportar o estado na arte nesse tema.Palavras-chave: Acondicionamento térmico. Aviário. Ventilação híbrida. Ventilação mecânica. Ventilação natural.

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“…This may increase the prevalence of pathogens, such as Salmonella sp., in the environment (Chernaki-Leffer et al, 2002), and therefore, management practices that reduce broiler house contamination need to be developed. For instance, Abreu et al (2011) evaluated different litter substrates (soybean stubble and rice husks) and two ventilation systems (fixed and oscillating) and observed a reduction in enterobacteria levels in the litter.…”

Section: Introductionmentioning

confidence: 99%

Broiler litter reutilization applying different composting concepts

Sonoda

Moura

Bueno³

et al. 2012

Rev. Bras. Cienc. Avic.

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Broiler litter reutilization consists in using the same bedding material to cover the house floor for several broiler flocks. This requires the litter to be treated in order to reduce the amount of microorganisms, according to international recommendations. The aim of this study was to evaluate two methods of broiler litter fermentation based on composting concepts and their effect on litter and the air quality during fermentation in small-scale broiler houses. The experiment was carried out in the Environmental Laboratory I of the School of Agricultural Engineering of the State University of Campinas, utilizing six smallscale houses. Litter from the same grow-out (one, two or three) was distributed in two experimental houses, where it was either piled or spread. Before beginning the treatment, six litter samples were collected from each house and analyzed for total nitrogen content, humidity, pH and microbial counts. Litter humidity, gas emission (NH 3 and CO 2 ), environmental temperature, air relative humidity, and air velocity were determined during and after composting. Bacterial population, especially of Salmonella sp, was higher when the litter was piled compared with spread litter. However, fungi population showed a different pattern, decreasing after composting. Nevertheless, both treatments were not able to significantly reduce bacterial counts, specifically Salmonella sp, when the population before and after fermentation were compared. INTRODUCTIONThe poultry industry is one of the fastest growing sectors of global agribusiness because of the increasing demand for animal protein, including meat and eggs. However, one of the main challenges of modern poultry production is the disposal of waste, particularly of broiler litter (Bolan et al., 2010). At the same time, the poultry industry also faces litter availability problems because of the increasing demand. Therefore, different substrate types and qualities available in the market need to be used (Bigili et al., 2009).Litter is used to provide comfort to the birds and to maintain carcass quality, as it reduces the incidence of breast and footpad lesions, as well of lesions in other less commercially important parts (Oliveira et al., 2002).According to Kelleher et al. (2002), litter and waste predominantly consist of water, carbon (C), nitrogen (N) and phosphorus (P), and lower levels of chlorine (Cl), calcium (Ca), magnesium (Mg), sodium (Na), manganese (Mn), iron (Fe), copper (Cu), zinc (Zn), and arsenic (As). These levels vary among broiler houses and regions, depending on the substrate, number of flocks reared, drinking systems, hygiene status, cleaning method, and storage (Edwards & Daniel, 1992;Jacob et al., 1997;Dao & Zhang, 2007

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Evaluation of litter material and ventilation systems in poultry production: I. overall performance

Cited by 8 publications

References 7 publications

Effects of Feeder Shape on Behavioral Patterns, Performance and Egg Quality Traits of Japanese Quail

Effects of Feeder Shape on Behavioral Patterns, Performance and Egg Quality Traits of Japanese Quail

Sistemas De Ventilação Na Avicultura Brasileira: Estado Da Arte

Broiler litter reutilization applying different composting concepts

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